Solon's Illustrated Journal records the present pair as completed between the 11th of October and the 11th of December. The margins note a combined minimum of 79 days of labour.
See Bernard Bumpus, Pâte-sur-Pâte, The Art of Ceramic Relief Decoration, 1849-1992, London, 1992, p. 124, fig. 80 for a similar pair titled 'Terrain miné' entered in Solon's Journal the following May and possibly conceived as the contra partie. Here the maidens are either undermined by putti or are attempting to rescue putti from collapsed caverns.
The overleaf illustrates half of a rare drawing by Solon conserved by the Mintons Archive, No. 49, B634. The full study reveals two of the maidens on one of the present pair.
See the archival index on page 58 for a period photograph of the present lot.